JP4982614B1 - Display control apparatus and display control program - Google Patents

Abstract

When a part of an image having a size larger than the size of the display screen is displayed on the display screen, the display state of the entire object image on the display screen is suitably controlled.
According to one embodiment, a display control apparatus includes display means, virtual desktop means, selection means, and control means. The display means displays the first image having the first size. The virtual desktop means sets an image that is a partial area of the second image having the second size larger than the first size as the first image. The selection unit permits the user to select which area of the second image is set as the first image. The control means selects the area so that a part of the object is displayed or the entire object is not displayed according to the selected area being an area where a part of the object existing in the area is not displayed. Control to change.
[Selection] Figure 2

Description

  Embodiments described herein relate generally to a display control device and a display control program for controlling image display.

  In recent years, in a display control device such as a personal computer having a display screen or a portable information terminal, a user interface using icons or windows on the screen is used. A screen used as a user interface is called a desktop. On the desktop, a background image called wallpaper is displayed on the back of the icons and windows independently of the icons and windows.

  There is a technique called a virtual desktop that defines a range larger than the size of the display screen as a temporary desktop. In the virtual desktop, a part of the background image having a size larger than that of the display screen is displayed on the display screen. A user of the information processing apparatus can move a partial area of the background image displayed on the display screen. That is, an arbitrary area of a background image having a size larger than the size of the display screen is displayed on the display screen. In addition, a technique for applying a virtual desktop and correcting the display range of an image displayed on a display screen is disclosed.

Special table 2007-526548

  Conventionally, however, an image having a size larger than the size of the display screen may be displayed in a state where an object on the image straddles the peripheral portion of the display screen. In other words, when a part of an image having a size larger than the size of the display screen is displayed on the display screen, a part of the object (object) on the image is cut off and may not be displayed.

  Therefore, the problem to be solved by the present invention is that when a part of an image having a size larger than the size of the display screen is displayed on the display screen, the display state of the entire object (object) image on the display screen is changed. To provide a display control device and a display control program that can be suitably controlled.

  The display control apparatus according to the embodiment includes display means, virtual desktop means, selection means, and control means. The display means displays the first image having the first size. The virtual desktop means sets an image which is a partial area of the second image having a second size larger than the first size as the first image to be displayed by the display means. The selection unit permits the user to select which area of the second image the virtual desktop unit sets as the first image. The control means may display the part of the object in response to the area selected by the selection means being an area where a part of the object existing in the area is not displayed, or Control to change the area so that the entire object is not displayed.

The figure which shows the system configuration | structure of the slate type personal computer (slate PC) which is a display control apparatus which concerns on this embodiment. The block diagram which shows the function structure of the image display application program performed by slate PC. The figure which shows the specific example of the positional information memorize | stored in an object area | region information storage part. The figure for demonstrating the specific example of the range information in the virtual desktop function performed with the slate PC concerning this embodiment, and position information. The schematic diagram which shows the specific example of the state before change of a display range in operation | movement of the virtual desktop function performed with slate PC concerning this embodiment. The schematic diagram which shows the 1st specific example of the state after the change of the display range was performed. The schematic diagram which shows the 2nd specific example of the state after the change of the display range was performed. The schematic diagram which shows a mode that a display range is changed so that it may be in the state shown in FIG. 7 from the state shown in FIG.

Hereinafter, the present embodiment will be described with reference to the drawings.
FIG. 1 is a diagram showing a system configuration of a slate personal computer (hereinafter referred to as a slate PC) 10 which is a display control apparatus according to the present embodiment.
The slate PC 10 includes a central processing unit (CPU) 101, a north bridge 102, a main memory 103, a south bridge 104, a graphics processing unit (GPU) 105, a random access memory (VRAM) 105A, a sound controller 106, and a BIOS-ROM. (Basic input / output system-read only memory) 107, LAN (local area network) controller 108, hard disk drive (HDD) 109, optical disk drive (ODD) 110, USB controller 111A, card controller 111B, wireless LAN controller 112, embedded A controller / keyboard controller (EC / KBC) 113 and an EEPROM (electrically erasable programmable ROM) 114 are provided.

  The CPU 101 is a processor that controls the operation of each unit in the slate PC 10. The CPU 101 executes the BIOS stored in the BIOS-ROM 107. The BIOS is a program for hardware control. The CPU 101 executes a plurality of programs such as an operating system (OS) 151 and an image display application program 152 that are loaded from the HDD 109 to the main memory 103. For example, the main memory 103 is an SRAM. The image display application program 152 may be a partial program of the OS 151 or a program that operates independently.

  The image display application program 152 is software that executes control to display an image based on still image data stored in the HDD 109 as a desktop background image, for example. The desktop is a screen used as a user interface using icons and windows on the display screen. The image display application program 152 executes control of a virtual desktop that defines a range larger than the size of the display screen as a temporary desktop. The virtual desktop is a technique or function for displaying a part of an image having a size larger than the display screen as a desktop on the display screen. In the virtual desktop function according to the present embodiment, the user of the slate PC 10 is allowed to select which area of an image having a size larger than the display screen is displayed on the display screen. Also, the display range of the background image is suitably set according to the position of an object (hereinafter also referred to as an object) on the image displayed on the display screen.

  The north bridge 102 is a bridge device that connects the local bus of the CPU 101 and the south bridge 104. The north bridge 102 also includes a memory controller that controls access to the main memory 103. The north bridge 102 also has a function of executing communication with the GPU 105 via, for example, a PCI EXPRESS serial bus.

  The GPU 105 is a display controller that controls the LCD 17 used as a display monitor of the slate PC 10. The GPU 105 generates a display signal and sends the generated display signal to the LCD 17. The LCD 17 displays an image based on the display signal sent from the GPU 105 on the display screen.

  The south bridge 104 controls each device on a peripheral component interconnect (PCI) bus and each device on a low pin count (LPC) bus. The south bridge 104 incorporates an IDE (Integrated Drive Electronics) controller for controlling the HDD 109 and the ODD 110. The south bridge 104 also has a function of executing communication with the sound controller 106.

  The sound controller 106 is a sound source device and outputs audio data to be reproduced to the speaker 18. The LAN controller 108 is, for example, a wired communication device that executes wired communication conforming to the IEEE 802.3 standard. The wireless LAN controller 112 is a wireless communication device that executes wireless communication of, for example, the IEEE 802.11g standard. The USB controller 111 </ b> A executes communication with an external device connected via the USB connector 19, for example, corresponding to the USB 2.0 standard. The card controller 111B executes writing and reading of data with respect to a memory card such as an SD card inserted into the card slot 20 provided in the main body of the slate PC 10.

  The EC / KBC 113 is a one-chip microcomputer in which an embedded controller for power management and a keyboard controller for controlling the keyboard 13 and the touch pad 16 are integrated. The touch pad 16 may be configured integrally with the LCD 17. The EC / KBC 113 receives operation inputs from a mouse (not shown) as well as the keyboard 13 and the touch pad 16. Further, the EC / KBC 113 has a function of turning on / off the power of the slate PC 10 in accordance with an operation of a power button (not shown).

  Note that still image data serving as a background image in the virtual desktop function may be stored in another nonvolatile memory instead of the HDD 109. The nonvolatile memory may not be provided in the slate PC 10 and may be connected via the USB connector 19 or the card slot 20, for example. Still image data may be acquired from a storage module on a network connected via the LAN controller 108 or the wireless LAN controller 112.

  Still image data that is a background image in the virtual desktop function is an image having a large size in either the vertical direction or the horizontal direction, even if the image is larger in both the vertical and horizontal directions than the display screen. Also good.

  With such a configuration, the slate PC 10 can display the image data stored in the HDD 109 on the LCD 17 as a desktop by executing the image display application program 152. In addition, since the virtual desktop function is realized by the image display application program 152, a part of an image having a size larger than the display screen of the LCD 17 can be displayed on the LCD 17. In the virtual desktop function according to the present embodiment, the display range of the background image displayed on the LCD 17 is suitably set according to the position of the object (object) on the image.

Next, the functional configuration of the image display application program 152 operating on the slate PC 10 will be described with reference to FIG.
FIG. 2 is a block diagram showing a functional configuration of the image display application program 152 executed by the slate PC 10.
As described above, the image display application program 152 according to the present embodiment implements a virtual desktop function that sets the display range of the background image displayed on the display screen according to the position of the object (object) on the image. For example, an object on the image is a characteristic part in the image such as the face or whole body of a person or animal, or a character string.

  The image display application program 152 includes a main control unit 201, a display range determination unit 202, and an object area management unit 203. The HDD 109 includes a still image data storage unit 211 and an object area information storage unit 212.

  The main control unit 201 receives start information indicating that the virtual desktop function is started. In response to the reception of the start information, the main control unit 201 outputs instruction information indicating execution of a predetermined process to the display range determination unit 202 or the object area management unit 203. In addition, the main control unit 201 reads still image data from the still image data storage unit 211 in response to reception of the start information. Further, based on the range information received from the display range determination unit 202, the main control unit 201 outputs image data that is a part of the read still image data and is displayed on the display screen, and displays the image data on the LCD 17. The range information is information related to the display range of an image having a size larger than that of the display screen.

  Based on the instruction information output from the main control unit 201, the display range determination unit 202 reads position information regarding the position of the object relative to the entire image from the object area information storage unit 212. The display range determination unit 202 determines a display range of an image to be displayed on the display screen based on the read position information. In the present embodiment, the display range is determined so that the display state of the entire object image on the display screen is suitable. The display range determination unit 202 outputs range information corresponding to the determined display range to the main control unit 201.

  The object area management unit 203 reads still image data from the still image data storage unit 211 and determines position information of an object present in an image generated from the read still image data. The object area management unit 203 causes the object area information storage unit 212 to store the position information determined for each object in association with each object present in the image.

  The still image data storage unit 211 stores still image data of an image having a size larger than the display screen, which is used in virtual desktop control. The still image data storage unit 211 also stores still image data of an image that becomes a desktop background image.

  The object area information storage unit 212 stores position information in association with an object. As described above, the position information is information that can uniquely identify the position of the object with respect to the entire image. The position information is stored in association with the still image data. That is, it is possible to specify not only the object but also the still image data from the position information.

  Note that the still image data storage unit 211 and the object area information storage unit 212 may be provided in another storage module instead of the HDD 109. This storage module may not be provided in the slate PC 10 and may be connected via, for example, the USB connector 19, the card slot 20, the LAN controller 108, or the wireless LAN controller 112. The object area information storage unit 212 may be provided in a primary storage such as the main memory 103 instead of a secondary storage such as the HDD 109.

  The user of the slate PC 10 may be configured to determine the position information of the object existing in the image generated from the still image data by using the editing program. This editing program is an application program that allows the user of the slate PC 10 to set a range to be an object from an image on the display screen by using the keyboard 13, the touch pad 16, or the like. Position information corresponding to the range set as the object is stored in the object area management unit 203. Further, the object area management unit 203 may be configured to extract an object such as a face or a character string in the image by analyzing the target image using a known image analysis technique. In other words, even if the object region management unit 203 analyzes the target image based on the characteristics of the object, the object region is identified from the image, and position information relating to the identified region is generated. Good. Furthermore, the position information of the object may be determined using both an editing program and a well-known image analysis technique.

  Note that the image display application program 152 may not include the display range determination unit 202 and the object area management unit 203, and these modules may operate as a single program.

  The image display application program 152 according to the present embodiment may be a program recorded on a readable recording medium instead of software stored in the slate PC. Further, the image display application program 152 may be a program executed on a Web site on a network.

  With such a configuration, the image display application program 152 can realize a virtual desktop function. In the virtual desktop function according to the present embodiment, the display range of the background image displayed on the display screen is set according to the position of the object. Therefore, the slate PC 10 according to the present embodiment suitably controls the display state of the entire object image on the display screen when a part of the image having a size larger than the size of the display screen is displayed on the display screen. Can do.

Next, specific examples of range information and position information in the virtual desktop function executed by the slate PC 10 according to the present embodiment will be described with reference to FIGS. 3 and 4.
FIG. 3 is a diagram illustrating a specific example of the position information stored in the object area information storage unit 212. FIG. 4 is a diagram for explaining a specific example of range information and position information in the virtual desktop function executed by the slate PC 10 according to the present embodiment.

  In the virtual desktop function executed by the slate PC 10 according to the present embodiment, range information and position information are managed by coordinates. More specifically, the range information and the position information are managed by coordinates based on the coordinates for the background image in the virtual desktop function. The object position information is managed as a range around a rectangle, ellipse or circle, polygon, or closed curve. In the following description, an example will be described in which object position information is managed as a range around a rectangle.

  As shown in FIG. 3, the position information of each object is stored in two sets of XY coordinates for each object. One of the two sets of XY coordinates is the coordinate of the upper left point on the screen of the target object, and the other is the coordinate of the lower right point on the screen of the target object. With these two sets of XY coordinates, each object can be specified in a range surrounding a rectangle in the background image. Each object is stored in association with existing still image data.

  FIG. 4 shows a state in which a display range corresponding to the size of the display screen exists in a part of the background image in the virtual desktop function, and an object A exists in an area inside the display range. In this state, the display range corresponding to the size of the display screen and the range where the object exists are managed by coordinates. Specifically, the coordinates for the background image are managed with the upper left point of the background image on the drawing as the origin (0, 0) and the lower right point as (X, Y). As for the coordinates corresponding to the display range, the upper left point is managed as (X1, Y1), and the lower right point is managed as (X2, Y2). As for the coordinates for the object, the upper left point is managed as (OX1, OY1), and the lower right point is managed as (OX2, OY2). In FIG. 4, the magnitude relationship between the coordinate values is 0 <X1 <OX1 <OX2 <X2 <X and 0 <Y1 <OY1 <OY2 <Y2 <Y.

  Note that the coordinates corresponding to the display range may be managed by only one point of the coordinates (X1, Y1) of the upper left point as long as the size of the display screen does not change. The shift amount (X2-X1, Y2-Y1) corresponding to the size of the display screen is stored independently, and the display range is specified by adding the shift amount for both the X and Y elements to the coordinates of the upper left point. It becomes possible to do. Further, only one point of the coordinates (X2, Y2) of the lower right point may be managed. In this case, the display range can be specified by subtracting the shift amount for both the X and Y elements from the coordinates of the lower right point. On the other hand, if the size of the display screen changes, as described above, the coordinates corresponding to the display range need to be managed by the coordinates of the upper left and lower right coordinates. For example, as in the case of the slate PC 10, if the size of the display screen does not change, the coordinates corresponding to the display range may be managed at one point on the upper left or lower right.

Next, a specific example of the operation of the virtual desktop function executed by the slate PC 10 according to the present embodiment will be described with reference to FIGS.
FIG. 5 is a schematic diagram illustrating a specific example of a state before the display range is changed in the operation of the virtual desktop function executed by the slate PC 10 according to the present embodiment.
As described above, the image display application program 152 according to the present embodiment implements a virtual desktop function that sets the display range of the background image displayed on the display screen according to the position of the object on the image. In this virtual desktop function, still image data as a background image is read in response to an event such as the start of the virtual desktop function, the change of the background image of the virtual desktop, or the change of the display range for the entire background image. Further, the display range of the background image is set or changed according to these events.

  Furthermore, as described above, the virtual desktop function according to the present embodiment allows the user of the slate PC 10 to select which area of the background image is to be displayed on the display screen. In other words, the user of the slate PC 10 can perform an operation of selectively changing the display range for the entire background image. For this operation, input means such as a keyboard 13, a touch pad 16, or a mouse (not shown) is used. The display range can be changed with respect to the coordinates corresponding to this display range, for example, a value that becomes the minimum unit of the coordinates of the background image, a value that becomes the horizontal or vertical coordinate value of the display screen, or the horizontal direction of the display screen Alternatively, it is performed in units of values obtained by dividing the vertical coordinate values. In changing the display range, which value is used as a unit may be determined depending on which input means is used.

(Specific example before changing the display range)
When the display range of the background image is set or changed, the operation for setting or changing the display range may be completed in a state where objects existing in the display range straddle the periphery of the display range. FIG. 5 schematically shows this state. Specifically, in FIG. 5, coordinates corresponding to the display range are managed such that the upper left point is (X1, Y1) and the lower right point is (X2, Y2), and the coordinates for the object B are the upper left point. (OX3, OY3), the lower right point is managed as (OX4, OY4).

  In response to the completion of the operation for setting or changing the display range, the positional relationship between the display range and the object is determined. This determination can be realized by the display range determination unit 202 comparing the coordinates corresponding to the display range with the coordinates for the object. In the state shown in FIG. 5, first, the positional relationship between the display range and the object in the left peripheral portion on the drawing of the peripheral portion of the display range is determined. Specifically, the X coordinate OX3 of the upper left point of the object B and the X coordinate OX4 of the lower right point are compared with the X coordinate X1 of the upper left point of the display range. The magnitude relationship between the coordinate values is OX3 <X1 <OX4. From the magnitude relationship of the coordinates, it is determined that the object B straddles the peripheral portion on the left side of the display range.

  Further, the positional relationship between the display range and the object in the upper peripheral portion on the drawing in the peripheral portion of the display range is determined. Specifically, the Y coordinate OY3 and the Y coordinate OY4 of the lower right point of the object B are compared with the Y coordinate Y1 of the upper left point of the display range. The magnitude relationship between the coordinate values is Y1 <OY3 <OX4. From the magnitude relationship of the coordinates, it is determined that the object B exists below the upper peripheral portion of the display range. Similarly, determination is performed on the right peripheral portion and the upper peripheral portion of the display range. From the relationship between the coordinates in these peripheral portions, a determination result that the object B extends over the left and lower peripheral portions of the display range is obtained.

(First specific example after changing the display range)
FIG. 6 is a schematic diagram showing a first specific example of a state after the display range is changed.
When there is only one object in the display range as in the state shown in FIG. 5, the display range is changed so that the entire object is displayed in the display range.

  In the state shown in FIG. 5, it is determined that the object B protrudes only (X1-OX3) on the left side and (OY4-Y2) on the lower side with respect to the display range. In this case, the object B can be displayed in the display range by moving the display range by (X1-OX3) to the left and (OY4-Y2) by the lower side.

  That is, the coordinates corresponding to the display range are (X1, Y1) at the upper left point, (X2, Y2) at the lower right point, and (X1- (X1-OX3), Y1 + (OY4-Y2) at the upper left point. )), And the lower right point is changed to (X2- (X1-OX3), Y2 + (OY4-Y2)). Specifically, in FIG. 6, the coordinates corresponding to the display range are (X1- (X1-OX3), Y1 + (OY4-Y2)) at the upper left point and (X2- (X1-OX3) at the lower right point. , Y2 + (OY4-Y2)). On the other hand, the coordinates for the object B are managed as (OX3, OY3) for the upper left point and (OX4, OY4) for the lower right point, as in FIG.

(Second specific example after changing the display range)
FIG. 7 is a schematic diagram illustrating a second specific example of the state after the display range is changed.
In the first specific example after the change of the display range shown in FIG. 6, the object B is displayed so as to be substantially in contact with the peripheral portion of the display range. The second specific example is an example in which the object B is displayed inward by a predetermined amount from the periphery of the display range.

  In the state shown in FIG. 5, it is determined that the object B protrudes only (X1-OX3) on the left side and (OY4-Y2) on the lower side with respect to the display range. In this case, the object B can be displayed in the display range by moving the display range by (X1-OX3) to the left and (OY4-Y2) by the lower side. In the second specific example, the display range is changed so that the object B is displayed inward by a predetermined amount M from the peripheral portion of the display range, instead of being substantially in contact with the peripheral portion of the display range. Specifically, by moving the display range by (X1-OX3 + M) on the left side and (OY4-Y2 + M) on the left side, the object B can be displayed inward by a predetermined amount M from the periphery of the display range. .

  That is, the coordinates corresponding to the display range are (X1, Y1) for the upper left point, (X2, Y2) for the lower right point, and (X1- (X1-OX3 + M), Y1 + (OY4-Y2 + M) for the upper left point. )), And the lower right point is changed to (X2- (X1-OX3 + M), Y2 + (OY4-Y2 + M)). Specifically, in FIG. 7, the coordinates corresponding to the display range are (X1- (X1-OX3 + M), Y1 + (OY4-Y2 + M)) at the upper left point, and (X2- (X1-OX3 + M) at the lower right point. , Y2 + (OY4-Y2 + M)). On the other hand, the coordinates for the object B are managed as (OX3, OY3) at the upper left point and (OX4, OY4) at the lower right point, as in FIGS.

  FIG. 8 schematically shows how the display range is changed from the state shown in FIG. 5 to the state shown in FIG. 7 by the virtual desktop function according to the present embodiment. FIG. 8A shows a state before the display range is changed, and a human face as an object at the lower left of the screen straddles the display range. FIG. 8B shows a state after the display range is changed, and a human face as an object at the lower left of the screen is displayed within the display range.

  In the specific examples illustrated in FIGS. 6 and 7, the example has been described in which the display range is changed so that the entire object in a state straddling the periphery of the display range is displayed within the display range. However, the display range may be changed so that the entire object in a state straddling the periphery of the display range is out of the display range and is not displayed. Whether to change the entire object to be within the display range or to be outside the display range may be determined according to the result of determining whether the change amount of the display range is smaller. . In this way, by changing the display range by selecting the smaller change amount of the display range from the position change candidates in the two directions, it is possible to avoid a large change in the display range.

  In the virtual desktop function, an icon and an application window screen are displayed on the display screen as well as an image of a partial area of the background image having a size larger than the size of the display screen. In the specific examples illustrated in FIGS. 6 and 7, the example in which only the display range is changed with respect to the entire background image has been described. However, not only the display range but also the positions of icons and application window screens may be changed in synchronization with the entire background image. Thus, the positional relationship between the object and the icon or application window screen can be maintained by changing the position of the icon or application window screen in synchronization with the display range.

  In the specific examples shown in FIGS. 6 and 7, the example in which there is only one object in the display range has been described, but there may be a plurality of objects in the display range. However, not all objects may be displayed within the display range. In this case, it is only necessary to determine which object is to be preferentially displayed by giving information about the priority to each of the plurality of objects existing in the display range. Further, by evaluating a function proportional to the number of objects to be displayed, it may be determined which change is suitable from a plurality of position change candidates. Furthermore, a candidate with a small amount of movement may be selected from a plurality of position change candidates.

  In this way, in the virtual desktop function according to the present embodiment, the positional relationship between the display range and the object is determined in response to the completion of the operation for setting or changing the display range. Further, the display range is changed so that the entire object is displayed within the display range according to the determination result. That is, according to the slate PC 10 according to the present embodiment, when a part of an image having a size larger than the size of the display screen is displayed on the display screen, the display state of the entire object image on the display screen is preferably controlled. can do.

  As described above, according to the present embodiment, based on the stored image data, an image of a partial area of the background image having a size larger than the size of the display screen is displayed in the display range as a desktop. Further, a virtual desktop function is executed in which the display range of the image displayed on the display screen is set according to the position of the object existing in the background image. Therefore, according to the slate PC according to the present embodiment, when a part of an image larger than the size of the display screen is displayed on the display screen, the display state of the entire object image on the display screen is preferably controlled. can do.

  Although at least one embodiment has been described, the described embodiment is presented as an example, and the scope of the invention is not limited to this embodiment. In addition, various changes and modifications can be made to the described embodiment without departing from the scope of the present invention. Furthermore, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above-described embodiments. For example, some constituent elements may be deleted from all the constituent elements shown in the embodiments, and the constituent elements according to the different embodiments may be appropriately combined. These embodiments and modifications thereof are included in the scope and spirit of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 10 ... Computer, 13 ... Keyboard, 16 ... Touchpad, 17 ... LCD, 18 ... Speaker, 19 ... USB connector, 20 ... Card slot, 101 ... CPU, 102 ... North bridge, 103 ... Main memory, 104 ... South bridge, 105 ... GPU, 105A ... VRAM, 106 ... Sound controller, 107 ... BIOS-ROM, 108 ... LAN controller, 109 ... Hard disk drive (HDD), 110 ... Optical disk drive (ODD), 111A ... USB controller, 111B ... Card controller, 112 ... Wireless LAN controller, 113 ... Embedded controller / keyboard controller (EC / KBC), 114 ... EEPROM, 151 ... Operating system (OS), 152 ... Image display application Activation Program, 201 ... main control unit, 202 ... display range determination unit, 203 ... object region manager, 211 ... still picture data storage unit, 212 ... object area information storage unit.

Claims (6)

Display means for displaying a first image of a first size;
Virtual desktop means for setting an image that is a partial area of a second image having a second size larger than the first size as the first image to be displayed by the display means;
Selecting means for allowing the user to select which area of the second image the virtual desktop means sets as the first image;
The area selected by the selection means is displayed in such a manner that the part of the object is displayed or the entire object is displayed in response to the fact that a part of the object existing in the area is not displayed. Control means for controlling to change the area so as not to be
A display control apparatus comprising:   The display control apparatus according to claim 1, wherein the object is one of a human or animal face or a character string.   The control means includes a part of the object based on position information based on coordinates of a region where the object exists with respect to coordinates of the second image and coordinates of the first screen with respect to the second screen. The display control apparatus according to claim 2, wherein it is determined that the area is not displayed.   Setting means for permitting the user to set in advance the position information relating to an object existing in the displayed first image while the display means is displaying the first image. The display control apparatus according to claim 3, further comprising:   In the state where the display means is displaying the first image, the information processing apparatus further includes a generation unit that specifies a region where the object exists based on a feature of the object and generates position information regarding the specified region. The display control device according to claim 3. A display control program executed for a display control device that displays a first image of a first size,
An image that is a partial region of a second image having a second size larger than the first size is set as the first image to be displayed;
Allowing the user to select which region of the second image is set as the first image;
The selected area is an area where a part of the object existing in the area is not displayed, so that the part of the object is displayed or the entire object is not displayed. A display control program for controlling to change the area.

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